Bernard Abell, 75, was found dead in his Southland Terrace home in the Iroquois neighborhood of south Louisville on a Sunday morning in January 2015. He was pronounced dead at the scene shortly before 10 a.m. and a coroner’s autopsy determined blunt force trauma as the cause of death; police subsequently ruled the case a homicide.

Abell was a retired mechanic and a native of Marengo, Indiana. At the time investigators appealed to the community for information, no suspects had been identified and no arrests were announced. His family — a son, two daughters and four grandchildren — and his dog Sandy were left grieving his loss.

What did neighbors in Iroquois notice that January morning or in the days before the discovery that might help bring clarity to this unresolved homicide?